Page 375 - Catalogue-Osawa-2021

HF UNI - Variable Helix and unequal pitch - 45° chamfer

CUTTING PARAMETERS
INFO
HF840

Material Group P1 P2 P7 K1 P3 P4 M1 K2 K3 P5 M2 M3 K4 S1 S4 S2 S3 S5
ISO 513
Hardness/Rm ≤700 N/mm² 600÷1000 N/mm² ≤35 HRC ≤40 HRC
ap x ae 2D x 0.2D 2D x 0.1D 1.5D x 0.1D 1.5D x 0.1D
Vc (m/min) 190÷230 130÷150 100÷120 50÷70
CARBIDE
D fz fz fz fz
(mm) (mm/z) (mm/z) (mm/z) (mm/z) DRILLS
3 0.035 0.032 0.028 0.039
PU-HPU
4 0.046 0.042 0.037 0.051
TROCHOIDAL TA-4HTA
5 0.058 0.052 0.046 0.063
SUH
6 0.068 0.061 0.054 0.074 ALH
8 0.088 0.079 0.070 0.096 HRC
10 0.105 0.095 0.084 0.116 SUH MINI
12 0.120 0.108 0.096 0.132 HL
14 0.135 0.122 0.108 0.149 HSD
16 0.150 0.135 0.120 0.165 C-SD-TA
18 0.165 0.149 0.132 0.182
20 0.183 0.164 0.146 0.201
ap x ae ≤ D5 1.5D x 0.1D 1.5D x 0.1D

NOTES:
Down milling CNC programming is required.
“ae” value max 0.2xD - “T” value max 0.1xD.
The use of end mill with diameter 30-40% smaller than the width of the slot is recommended.
The cutting conditions are based on CNC programming with medium dynamic speed. HSS
With lower CNC dynamic speed, use the same cutting conditions or reduce the cutting speed Vc. DRILLS
With higher CNC dynamic speed, reduce the “T” value by approximately -30 -50% and apply the maximum available cutting speed Vc.
R1 Cutter radius LFTA
ae SUTA
R2 Half of slot width
T Programming width of cut HSS-HSS/CO

R2 ae Actual width of cut
R1

Y (+)
Y

X (+)
CARBIDE
T END-MILLS
G2
MDTA
HF VH/UP
MEF
ALU
MEX/MH
UH/MH

HSS
END-MILLS

CARBIDE
BURRS

PARAMETERS SUGGESTED WITH HIGH POWER MILLING CHUCK AND STABLE MACHINING CONDITION
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21/10/2021 12:13:14
Libro 1.indb 373
Libro 1.indb 373 21/10/2021 12:13:14